<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <link href="用户登录.css" rel="stylesheet" type="text/css">
        <title>网上书城</title>
    </head>
    <body >
       <div class="boss">
           <p class="one"> 网&nbsp;&nbsp;&nbsp;上&nbsp;&nbsp;&nbsp;书&nbsp;&nbsp;&nbsp;城</p>
           <form method="post" action="url" >
               <label>
                   <input type="text" placeholder="用户名">
               </label>
               <label>
                <input type="text" placeholder="密码">
            </label>
            <label>
                <input type="text" placeholder="确认密码">
            </label>
            <label>
                <input type="text" placeholder="电子邮件 ">
            </label>

           </form>       
       </div>
    </body>

</html>